Improvement in millstone-condensers and ventilators



Sh Di HEFFNER 2 eets Sheet! l mprovement in Millstone Condensers and Ventilators. NO. 114,678. Patented May 9,1871.

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lm provement ln Millstone Condensers and Ventilators. N0. "4,678. Patented May 9,1871.

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DANIEL HEFFNER, OF INDEPENDENCE, IOWA.

Letters Patent No. 114,678, dated May 9, 1871.

V IMPROVEMENT IN MlLLSTONE-CONDENSER S AND VENTILATORS.

The Schedule referred to in these Letters Patent and. making part of the same.

To all whom; it mag concern:

Be it known that I, DANIEL HEFFNER, of IndependeuceQ'in the county of Buchanan and in the State of Iowafhave invented certain new and useful Improvements in Millstone-Condenser and- Ventilator; and do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawing and to the letters of reference marked thereon. making a part of this specification.

The nature of my invention consists in the construct'ion and arrangement of a Millstoneflondenser and Ventilator, as will be hereinafter more fully set forth.

In order to enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe its construction and operation, referring to the annexed drawing, in which-- Figure l is a rear elevation of my machine, the millstones and curbs being in longitndinalvertical section; w

Figure 2 is a transverse vertical section of the same Figure 3 is a front View of the millstone-curbs;

Figure 4 is a rear view of the conveyer-box; and,- Figure 5 is a. plan view of the same, with. the conveyer in it;

Figure 6 is a plan view of the bottom of the case, underneath the conveyer-box;

Figure 7 is a plan view; and

Figure 8, an end view of a horizontal tube leading to a vertical tube for carrying off foul air, 850.

A and A represent two stationary millstoues;

B B are the running millstones; and

O G, the curbs over the same. I

To the back of the stone B are attached floats a a, and an interior ring,'b, in the top of the curb O, which n'ug comes nearly down to the upper edges of the floats a a.

.In the center of the curb G is a valve, d, suspended bythree arms, and projecting into the eye of the stone B for the purpose of governing the draught through the eye of the stone.

011 the. inner side of the curb G, down the sides thereof, are inclined floats c e, as shown.

The curb G is alsoprovided withfloats e down the sides, but the floats a are, in this case, attached to the interior ring D.

Inside, in the top of-this curb, is a small circular rim, j, with three screws, g, passing through the top a of the curb, by means of which this rim can be raised or lowered to govern the draught.

The floats a a, on the back of-the stone B,'are intended to blow fresh air in between the curb and millstonc when running or grinding.

After theair leaves these floats it is drawn downward by the floats c a in the curb, and by this means I draws fresh air through the eye of the stone upon the face of the millstone, and keeps it cool while grinding."

The floats a a in the curb O perform the same operation as the floats a a on the back of the stone B, the only difference being that one set is stationary while the other revolves.

The float in each curb which sits over the dischargespout D, as shown in fig. 3, comes clear down to the bottom to prevent all foul air and ground meal or flour from passing the discharge-spout; and by this means it discharges all foul air, steam, or moisture which wheat contains, and prevents said steam or moisture from cohdensing on the inside of the curb.

These floats may be made of any shape or form to apply on dilferent-sized stones, and to suit any kind of mill.

1) D are the conductors or discharge-spouts from the bed-stonesA A to the conveyer E.

This conveyer is placed and revolves within a trough or box, G, which is placed within and-a suitable distance above the bottom of an outer box or casing, H.

The conveyer.E consists of a roller of any suitable diameter, with wings or paddles h h set spirally, as shown in fig. 5, from one end to near the other.

At this end are, however, a fewof said wings or paddles set in the opposite direction, so that, when the flour is carried from one end of the conveyer-box G to near the other, it will, by the wings which it meets, be forced down into a spout, I, and be discharged, said spout passing from the bottom of the conveyor-box through the bottom of the casing H.

Inside of the front side of the casing H is placed av plate, It, the entire length of the casing, said plate being held in place by wood keys I, as shown in fig. 2.

Upon inclined flanges in the ends of the casing H rest a plate, m, and metal plate, a, forming a peaked roof over the conveyer-box Gr.

The lower edge of the plate at rests against the perpendicular plate It, while the lower edge of the plate at is just above and beyond the rear edge of the conveyer-box.

The object of this covering over the conveyor is to -condense all steam or moisture that escapes from the meal or flour after it is ground and discharged from the stones to the conveyer, and by this means the water or steam that is condensed may be carried off to any point desired.

The plates is m a may be of glass, brass, copper, iron, or any other metal that may be desired.

The water from the plate i passes into a groove, 1), in the bottom of the casing H, which groove leads to an opening, r, through which the water is discharged.

In the bottom, below the conveyer-box, is placed a plate, 8, to keep flour and dust from falling into the groove or gutter 1).

On the back of the conveyor-box G are placed inclined pieces 15 t toform grooves or gutters for carrying the water from the plate at to the opening 1'.

A horizontal tube, J, leads from the side of the cas ing H to a perpendicular tube, K, to convey all foul air to any place desired, the tube K being provided with a slide, 1), for regulating the draught.

The horizontal tube J is covered with plates w w to condense the steam or moisture which might leave the conveyer-coveriug without being condensed, the water from said plates 20 10 passing into grooves '5 12 or gutters in the sides of the tube J, and from thence into the opening 1' in the bottom ofthe casing H..

Having thus fully described my invention,

\Vhat I claim as new, and desire to secure by Letters Patent, is-- ,7 1 V I. The conveyer-coveriug 'm n, in combination with the perpendicular plate 70, and suitable gutters p t, and aperture 1', all substantially as andv for the purposes herein set forth.

2. The inclined covering w 10 over the tube J, in combination with the gutters a, i and aperture 0', substantially as and for the purposes herein set forth. 1

3. The arrangement, under the condenser-box G in the case H, of the plate s placed over the gutter p, substantially as and for the. purposes herein set forth. 4. The combination of the stone B having floats a', and the curb 0 having floatse a, substantially as and for the purposes herein set forth.

5. The combination of the stone B and the curb 0 having floats a and e, and ring f, substantially as arfd for the purposes herein set forth.

6,.The arrangement ofthe horizontal tube J provided with gutters i i, and the perpendicular tube, K with slide 0, when constructed and operating substantially as' set forth.

In testimony that'I claim the foregoing I have hereunto set my hand and seal this 10th day of February, 1871.

DANIEL HEFFNER. ['L. s,]

Witnesses:

S. SHERWOOD, WM. B. YOUNG. 

